Queen Elizabeth knows what she likes. She only wears one nail polish shade, always carries the same purse, and famously adores a particular dog breed (corgis, of course). So it's no surprise that she's also a stickler when it comes to the royal menu.

Britain's longest-reigning monarch hates a certain kitchen staple, and sadly it's one that generally makes everything taste better. "At Buckingham Palace you don't cook with garlic," former palace chef John Higgins told the National Post. "I suppose in case you get the royal burp."

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Higgins says you can tell when a royal recipe is authentic because it will never include the odorous flavor. Also missing from the menu? Rice, potatoes, and pasta are never served for dinner when the royal is dining on her own. The low-carb rule is part of the Queen's "disciplined" diet, her former personal chef Darren McGrady told the Telegraph. And when she does have sandwiches, the bread crusts are always cut off.